发明名称 |
Digital phosphor spectrum analyzer |
摘要 |
A digital phosphor spectrum analyzer (DPSA) uses a fast rasterization and decay process to emulate the look and feel of an analog phosphor display while improving the ratio of waveform acquisition to non-acquisition time. Multiple acquisitions of complex digital data for an input signal being analyzed across a frequency span are accumulated in a raster memory at a waveform update rate to produce a composite waveform. A decay function is applied to the composite waveform to produce a display waveform. The display waveform is viewed on a display device at a display update rate, resulting in the ability to see otherwise unobservable frequency characteristics of the input signal.
|
申请公布号 |
US2005057253(A1) |
申请公布日期 |
2005.03.17 |
申请号 |
US20030655513 |
申请日期 |
2003.09.03 |
申请人 |
GEE EDWARD C.;HILLMAN ALFRED K.;FOLLETTT STEPHEN D.;CAMERON RICHARD A.;SIVULA ANTTI |
发明人 |
GEE EDWARD C.;HILLMAN ALFRED K.;FOLLETTT STEPHEN D.;CAMERON RICHARD A.;SIVULA ANTTI |
分类号 |
G01R13/02;G01R23/16;(IPC1-7):G01R31/00 |
主分类号 |
G01R13/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|